I have tried two many years ago...both came from the maribyrnong river with one being small and clean its was prepped on the spot and cooked over a fire with oil and lemon and despite the bones wasnt too bad. The second was a large specimen which I gave to a friend who smoked it...lets just say I couldnt spit the sh!t out of my mouth quick enough

I haven't eaten many fresh water fish, only cod once and trout a few times, the trout wins out over cod IMO, I'm willing to try carp as long it was prepared and cooked by someone who knows what their doing in regards to spices.